Use of swirl-like adhesive patterns in the formation of absorbent articles

a technology of adhesive patterns and absorbent articles, which is applied in the field of disposable absorbent products, can solve the problems of inability of nozzles to vary the pattern and/or amount of adhesive during operation, and the mechanical stresses which must be resisted by adhesive in a product are rarely uniform, so as to improve the overall properties of the product

Inactive Publication Date: 2005-06-23
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical stresses which must be resisted by an adhesive in a product are rarely uniform and can vary significantly with position in the article.
Unfortunately, adhesive nozzles that have been used in the past have been substantially static such that the nozzles were incapable of varying the pattern and / or amount of adhesive during operation.

Method used

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  • Use of swirl-like adhesive patterns in the formation of absorbent articles
  • Use of swirl-like adhesive patterns in the formation of absorbent articles
  • Use of swirl-like adhesive patterns in the formation of absorbent articles

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Embodiment Construction

[0019] It is to be understood by one of ordinary skill in the art that the present discussion is a description of exemplary embodiments only, and is not intended as limiting the broader aspects of the present invention.

[0020] The present invention is generally directed to a system and process for applying adhesives in between two components in the formation of disposable absorbent products. The disposable absorbent products may be, for instance, diapers, training pants, swim undergarments, sanitary napkins, adult incontinence products, surgical drapes, wound dressings, and the like. Cleaning articles with absorbent components are also contemplated, such as dry or premoistened wipes comprising two or more adhesively joined components, such as a tissue layer joined to a nonwoven web, as disclosed in commonly owned U.S. application Ser. No. 10 / 321,277, “Disposable Scrubby Product,” filed Dec. 17, 2002 by Chen et al., and in commonly owned U.S. application Ser. No. 10 / 036,736, “Sponge-...

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Abstract

Absorbent products are disclosed comprised of multiple components. At least two of the components are adhered together using an adhesive. In accordance with the present invention, the adhesive is applied in between the components according to a non-uniform pattern that varies as a function of distance. For example, the adhesive pattern may change according to at least one of pattern breadth or adhesive dose in weight per unit area. In one particular embodiment, the pattern contains a swirl-like pattern containing a plurality of loops. Over a particular distance, a change may occur in the size of the loops, in the density of the loops, and / or in alternating between loops and a linear bead. In this manner, placement of the adhesive is carefully controlled in order to counteract mechanical stresses that are placed on the absorbent product during use.

Description

BACKGROUND OF THE INVENTION [0001] Disposable absorbent products currently find widespread use in many applications. For example, in the infant and childcare areas, diapers and training pants have generally replaced reusable cloth absorbent articles. Other typical disposable absorbent products include feminine care products such as sanitary napkins or tampons, adult incontinence products, and healthcare products such as surgical drapes or wound dressings. A typical disposable absorbent product generally comprises a composite structure including a covering, a liner, and an absorbent structure between the covering and the liner. The disposable absorbent products, when appropriate, also may include some type of fastening system for fitting the product onto a wearer. Adhesives are generally used to join the different parts of the disposable absorbent product together. The adhesives are typically applied to the components using one or more nozzles that deliver the adhesive as a linear be...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F13/15
CPCA61F13/15593A61F13/515A61F2013/53916A61F2013/1591A61F13/539
Inventor LINDSAY, JEFFREY DEANCHEN, FUNG-JOU
Owner KIMBERLY-CLARK WORLDWIDE INC
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